[xslt] Request for function implementation

[k_isdale tpg com au]

Hi all,

I would like someone to implement this function 
for me. It is to be included into the breakpoint 
API. Unless someone else can do it I'm not sure 
when it can be done. I think it would it take less 
50 lines to implement (including comments). This 
is to be used to validate the given url and line 
number when adding new break points.

-----------------------------
Daniel would you prefer this go into libxml/tree.c 
it could be useful for other tasks? Or maybe be 
the basis of an exslt function?
---------------------------

For a description of the algorithm I had in mind 
see    
http://mail.gnome.org/archives/xslt/2001-October/m
sg00057.html

The interface to be implemented is

xmlNodePtr xslfindNearestNode(xsltStylesheetPtr 
style, const xmlChar * url, long lineNumber, int 
range);
A possible meaning for range is that the "range" 
must be positive and the accurracy is then 
+/-range. Where preference is given to the closest 
node with a line number less than "target" line 
number

You can use the newly added xmlGetLineNo to find 
the line number of a node. I recommend the use of 
a recursive helper function but I'll leave that 
choice to you. The interface for the helper 
function could be 

xmlNodePtr xslfindNearest(xmlNodePtr node, const 
xmlChar * url, long lineNumber, int range);
A possible meaning of url is that if it is null 
then the "search" url is taken from node.
 

Let me know, via k_isdale@tpg.com.au, if you would 
like to do this. Thanks.

bye,

Keith
Isdale